On Wed, Nov 21, 2018 at 1:35 AM Sven Hartrumpf <hartru...@gmx.net> wrote:
But my argument is about interoperability between implementations, e.g. > reading with Scheme implementation A code written by Scheme implementation > B. > I fear that is a lost cause. Of 22 Schemes that I tested, only 8 support keywords at all. (Racket has something it calls keywords, but they are not self-evaluating or even expressions at all: only quoted keywords are expressions. They use SRFI 88 syntax.) Each of the :foo and foo: styles are supported by most of the 9, whereas the SRFI-88 style was supported by only 4. See https://bitbucket.org/cowan/r7rs-wg1-infra/src/default/KeywordSyntax.md for details -- John Cowan http://vrici.lojban.org/~cowan co...@ccil.org Business before pleasure, if not too bloomering long before. --Nicholas van Rijn
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